Secure encrypted-data aggregation for wireless sensor networks

  • Authors:
  • Shih-I Huang;Shiuhpyng Shieh;J. D. Tygar

  • Affiliations:
  • Department of Computer Science and Information Engineering, National Chiao Tung Univerisity, Hsinchu, Taiwan and Industrial Technology Research Institute, Hsinchu, Taiwan;Department of Computer Science and Information Engineering, National Chiao Tung Univerisity, Hsinchu, Taiwan;University of California Berkeley, Berkeley, USA

  • Venue:
  • Wireless Networks
  • Year:
  • 2010

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Abstract

This paper proposes a secure encrypted-data aggregation scheme for wireless sensor networks. Our design for data aggregation eliminates redundant sensor readings without using encryption and maintains data secrecy and privacy during transmission. Conventional aggregation functions operate when readings are received in plaintext. If readings are encrypted, aggregation requires decryption creating extra overhead and key management issues. In contrast to conventional schemes, our proposed scheme provides security and privacy, and duplicate instances of original readings will be aggregated into a single packet. Our scheme is resilient to known-plaintext attacks, chosen-plaintext attacks, ciphertext-only attacks and man-in-the-middle attacks. Our experiments show that our proposed aggregation method significantly reduces communication overhead and can be practically implemented in on-the-shelf sensor platforms.